Connected: An Internet Encyclopedia
RFC 1812 - F.2.1 Introduction

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### F.2.1 Introduction

RIP is specified in [ROUTE:3]. Although RIP is still quite important in the Internet, it is being replaced in sophisticated applications by more modern IGPs such as the ones described above. A router implementing RIP SHOULD implement RIP Version 2 [ROUTE:?], as it supports CIDR routes. If occasional access networking is in use, a router implementing RIP SHOULD implement Demand RIP [ROUTE:?].

Another common use for RIP is as a router discovery protocol. Section [4.3.3.10] briefly touches upon this subject.

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Connected: An Internet Encyclopedia
RFC 1812 - F.2.1 Introduction